Providers of very large online platforms and of very large online search engines should ensure that their approach to risk assessment and mitigation is based on the best available information and scientific insights and that they test their assumptions with the groups most impacted by the risks and the measures they take. To this end, they should, where appropriate, conduct their risk assessments and design their risk mitigation measures with the involvement of representatives of the recipients of the service, representatives of groups potentially impacted by their services, independent experts and civil society organisations. They should seek to embed such consultations into their methodologies for assessing the risks and designing mitigation measures, including, as appropriate, surveys, focus groups, round tables, and other consultation and design methods. In the assessment on whether a measure is reasonable, proportionate and effective, special consideration should be given to the right to freedom of expression.
